GL Renewables Certification (GL RC), a certification body in the renewable energies sector, has appointed Holger Trecksel its new head of business development and sales. In his new position, he will be responsible for worldwide customer management in the area of certification services.

Trecksel will work closely with GL RC's regional managers in the U.K., China, India and the U.S. In addition, he will lead GL RC's marine renewables business. He is based in GL RC's head office in Hamburg, Germany.